Research Article
Calculation of Toric Intraocular Lens Power with the Barrett Calculator and Data from Three Keratometers
Table 3
Mean difference between anterior corneal keratometry values for each pair of devices.
| | iTrace-IOLMaster | iTrace-Pentacam | IOLMaster-Pentacam |
| Astigmatism magnitude (D) | −0.10 ± 0.33 | 0.03 ± 0.27 | 0.12 ± 0.38 | = 0.005 | = 0.325 | = 0.002 | Flat keratometry (D) | −0.35 ± 0.27 | −0.31 ± 0.33 | 0.04 ± 0.36 | < 0.001 | < 0.001 | = 0.310 | Steep keratometry (D) | −0.45 ± 0.26 | −0.29 ± 0.30 | 0.16 ± 0.24 | < 0.001 | < 0.001 | < 0.001 | Mean keratometry (D) | −0.40 ± 0.20 | −0.30 ± 0.29 | 0.10 ± 0.24 | < 0.001 | < 0.001 | < 0.001 |
|
|
D: diopter.
|